Siemens FDOOT241-9 Technical Manual page 72

Mounting / Installation
72
Building Technologies
Fire Safety & Security Products
Variant A:
1. Connect the positive pole of the alarm indicator to the positive pole for the
alarm indicator on the detector.
2. Connect the negative pole of the alarm indicator to the negative pole for the
alarm indicator on the detector.
3. Connect the shielding of the connection cable between the alarm indicator and
detector on the detector side to the positive pole with an auxiliary terminal
DBZ1190-xx.
Variant B:
1. Connect the positive pole of the alarm indicator to the positive pole for the
alarm indicator on the detector.
2. Leave the negative pole for the alarm indicator on the detector unoccupied.
3. Connect each of the two negative poles of the alarm indicator separately to
both negative terminals of the FDnet line.
The two negative connections of the alarm indicator are decoupled internally in
the alarm indicator by diodes.
4. Connect the shielding of the FDnet line with the shielding of the connection
cable to the alarm indicator with an auxiliary terminal DBZ1190-xx.
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16.04.2009